<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注册页面</title>
</head>
<body>
<form action="/RequestDemo6" method="post" >
  用户名:<input type="text" name="username" ><br>
  密码:<input type="text" name="password"><br>
  <input type="submit" value="注册">

    <input type="checkbox" name="hobby" value="game">游戏
    <input type="checkbox" name="hobby" value="study">学习

</form>
</body>
</html>